Glandless pump and motor unit



Feb. 16, 1954 E. GUYER GLANDLESS PUMP AND MOTOR UNIT 3 Sheets-Sheet 1 Filed April 27, 1949 k uq lr||\ M\ fi iHHHM l l i lU l l l l l l I I IHI NHWMHHIH l l x a l H wwv n adv aw 3 an N No uh Q um Feb. 16, 1954 E. (BUYER 2,669,187

GLANDLESS PUMP AND MOTOR UNIT Filed April 27, 1949 3 Sheets-Sheet 2 ifivzrzi r W Patented Feb. 16, 1954 UNITED STATES PATENT OFFICE GLANDLESS PUMP AND MOTOR UNIT Ernest Guyer, Montreal, Quebec, Canada Application April 27, 1949, Serial No. 89,827

1 Claim. 1

This invention relates to improvements in glandless pumps, which pumps are useful for pumping any material lending itself to pumping action, and the principal object of the invention resides in the provision of a totally enclosed unitary glandles motor and pump in combination, wherein the pump and the motor therefor are bolted into one unit; the provision of a pump as aforesaid having a direct drive from the motor; the provision of a pump as above described and having a construction such as to permit omission of sliding glands or other washers or parts on the shaft, eliminating friction and many sources of troubles requiring constant maintenance. The present pump requires no oiling, reasing, or other maintenance for the life thereof.

Further objects of the invention reside in the provision of a directly driven pump as above stated wherein the rotor is immersed in the circulating liquid which is being pumped with the advantage that the motor works under steady, relatively low temperatures even though such motor is totally enclosed; and the provision of a pump a above described in which the pump is substantially noiseless and does not cause interference with radios or other electrical apparatus.

Another object of the invention resides in the provision of a pump of the class described which when not operating is of no resistance to the regular flow or circulation of material being pumped; and the provision of a pump of the class described for pumping any fluid material such as hot or cold water, salt water, gasoline, milk, oil, chemicals, or in fact, any fluid which has a suflicient lubricating capacity for the machine.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which 7 Fig. l is a vertical sectional view through a pump according to the present invention;

Fig. 2 is a similar view showing a modification;

Fig. 3 is a section on line 33 of Fig. 1; and

Fig. 4 is a section on line 44 of Fig. 1.

As shown in Figs. 1, 3 and 4, there is provided a pump housing generally indicated by the reference numeral it. This pump housing may be used as a support for the remainder of the device and it may in turn be supported in any position desired by appropriate means which will be clear to anyone skilled in the art. The pump housing comprises a barrel or the like l2 which is hollow and conical in shape and starts from a small end wherein is located a spiral pumping passage, indicated generally at Hi, and gradually enlarging toward the rear of the device and terminating in a circular flange IS. The pumping passage I4 is located at the forward end from the pump housing and, as illustrated in the present embodiment, the spiral pumping passage l4 gradually enlarges from a minimum at [8, see Fig. 3, to a maximum at 2B, and then merges into an exit or outlet fitting or the like at 22. Any kind of pipe may be fitted at 22 to carry away the pumped fluids.

The intake pipe is generally indicated at 24 and this pipe may be likewise as shown in Fig. 1 and besecured to the small forward end of the pump housing [2, as clearly shown in Fig. 1, in the open region thereof indicated at 28 in Fig. 3. Thus the fluid material will advance upwardly in the direction of the arrow 28, pass through the pumping vanes to be described, and eventually upwardly outwardly in the fitting 22.

The intake pipe 24 may be provided with a partial baflle 33 which may be inserted therein in any way desired but which directs the fluids to the right, as seen in Fig. 3, or toward the observer as seen in Figs. 1 and 4.

A lubricating guide and support for the rotor is generally indicated at 32 and this guide support may be bolted or otherwise fastened to the flange l6 by a flange 34. This guide is hollow and extends forwardly also in a conical manner but at a greater angle than the dimension of the pump housing i2 and terminates in a bearing support 35 for the rotor shaft 38, which extends through the bearing 40 and has attached thereto the pump vanes 42, all as clearly shown. The pumping element 42 is provided with a cap 44 and this cap is provided with a hole 45 for a purpose to be described.

The lubricating guide and shaft support 32 extends to the rear as at 48 and provides a support for bearings 5|] .for the motor rotor 52. The stator 54 is mounted in a motor housing 58, also attached by a flange 58 as, for instance, to the flange 34 above described. The housing 56 may be closed as by a cover and the lead-in wires t are adapted to be sealed in so that the interior of the motor and the pump is sealed in also.

The shaft 38 is hollow from end to end thereof and the path of the fluid for lubricating the motor and the pump is clearly indicated by the arrow, whereby it is seen that the fluid discharging to the pumping element from the passage between the baffle 38 and the wall of the intake pipe passes partly into the pump passage I 4 and partly past the vanes of the pumping element to the exterior of the lubricating guide and shaft support, thence through apertures 62 into the interior of the lubricating guide and shaft support, through the bearings and into the area before the rotor 52, thence around the latter and through the hollow shaft 38, which extends all the way to the pump, to be discharged at the hole 46, to be again acted upon by the pumping element 42. A shield 66 is used to separate the stator from the rotor.

It will be seen that this pump can be used as a single unit and is handled as such; that it absolutely disposes with all washers, packingsand glands; that it is self-controlled by the fluid which is pumped and that it takeson the temperature thereof in the event, for instance, of hot fluids; that this pump will be particularly useful for all kinds of beverages, beer, soft drinks, etc., for chemical factories, for hot water systems, in the paper industry,'oil, water systems, refrigerators, etc.

The bearings maybe of any kind desired but it is pointed out that sapphire or the like bearings would in all probability give the best service.

In the form of the-invention disclosed in Fig. 2, there has been-provided no bafile such as that-at 3a and in this case the intake pipe isshown at 70 leading into a head 72 in which the pumping element 14 islocated. In this case, the lubricating guide and shaft support is indicated generally at 76 and is of a naturesimilar to that above described, mounting bearings "13 for'the hollow shaft 80 and bearings-82 forthe rotor 8 The lubricating guide here also has a, flange as at-86 for securement thereto of-flange-88 of the outlet 90 and the motor housing92. Here also a shield 94 is. used to separate the stator Bifrom the rotor 84.

However, in this case, thelubricating guide is provided with a forward integral funnel-like cylindrical or conical element 98 and the fluid passes therethrough toopenings and to the outlet 90', as above described.

Having thus described'my invention'and' the advantages thereof, I do not wish to be limited to the details herein disclosed otherwise than as set forth in the claim, but What I claim is:

I A unitary assembled pump and motor unit comprising a pump housing including an inlet pipe and an outlet pipe and a hollow barrelshaped extension between thepipes', said extension being open atone end, av hollow shaft, a

shaft mounting for the shaft, a pump element on the shaft at one end thereof in position to deliver fluids from the intake to the outlet pipe, said hollow barrel extension having a pumping chamber therein surrounding the pumping element, a flange formed at the open end of the extension, a flange on the shaft mounting cooperating with said extension flange, said shaft mounting being hollow and elongated and extending. into the extension, a bearing positioned in one end of the shaft mounting adjacent the pump element, a

. bearing positioned at the opposite end of the shaft mounting exterior of the extension, said flanges being-secured together and lying intermediate of the bearings, the hollow shaft forming a fluid passage throughout its length and communicating with the inlet pipe, there being arspace surrounding the hollow shaft mounting and inside the extension, said pumping element and said barrel-shaped extension being spaced apart to provide fluid communication from the said pumping chamber to the said space exterior of the hollow shaft-'mounting, apertures in the hollow shaft mounting permitting fluid communication from the said space exterior of the end of the hollow'shaft.

ERNEST GUYER.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,114,727 Breeze Oct. 27, 1914 1,263,633 Zoell-y Apr; 23, 1918 1,433,037 Reid Oct. 24, 1922 1,720,333 Ketchum July 9, 1929 2,301,063 McConaghy Nov. 3,1942 2,423,825 Blom July 15, 1947 FOREIGN PATENTS Number Country Date 485,670 .Francex- Nov. 6, 1917 

